Self-inking stamp



FIG. 1 is a perspective view of a self-inking _stamp embodying our new design:

FIG. 2 is a front elevational view thereof;

FIG. 3 is an elevational view of one end thereof;

FIG. 4 is an elevational view of the opposite _end thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is an end elevational view showing the device _as it appears when pressed down to a position for applying _a stamp impression. 

The ornamental design for a self-inking stamp, substantially as shown and described. 